45° Elbow |

Size |
Equivalent Pipe (ft.) |

1/2 |
0.8 |

3/4 |
1.0 |

1 |
1.4 |

1-1/4 |
1.8 |

1-1/2 |
2.0 |

2 |
2.5 |

2-1/2 |
3.0 |

3 |
4.0 |

3-1/2 |
4.5 |

4 |
5.0 |

*For example, a 1⁄2 inch 45° Elbow fitting has the friction loss equal to 0.8 feet of pipe. Therefore, 10 feet of 1⁄2 inch pipe containing one 45° Elbow fitting has the same friction loss of 10.8 feet of straight pipe.* |

90° Elbow |

Size |
Equivalent Pipe (ft.) |

1/2 |
1.5 |

3/4 |
2.0 |

1 |
2.3 |

1-1/4 |
4.0 |

1-1/2 |
4.0 |

2 |
6.0 |

2-1/2 |
8.0 |

3 |
8.0 |

3-1/2 |
10.0 |

4 |
12.0 |

*For example, a 1⁄2 inch 90° Elbow fitting has the friction loss equal to 1.5 feet of pipe. Therefore, 10 feet of 1⁄2 inch pipe containing one 90° Elbow fitting has the same friction loss of 11.5 feet of straight pipe.* |

Tee thru Run |

Size |
Equivalent Pipe (ft.) |

1/2 |
1.0 |

3/4 |
1.4 |

1 |
1.7 |

1-1/4 |
2.3 |

1-1/2 |
2.7 |

2 |
4.3 |

2-1/2 |
5.1 |

3 |
6.3 |

3-1/2 |
7.3 |

4 |
8.3 |

*For example, a 1⁄2 inch Tee fitting flow along the Run has the friction loss equal to 1.0 feet of pipe. Therefore, 10 feet of 1⁄2 inch pipe containing one Tee fitting flow along the Run has the same friction loss of 11.0 feet of straight pipe.* |

Tee thru Branch |

Size |
Equivalent Pipe (ft.) |

1/2 |
4.0 |

3/4 |
5.0 |

1 |
6.0 |

1-1/4 |
7.0 |

1-1/2 |
8.0 |

2 |
12.0 |

2-1/2 |
15.0 |

3 |
16.0 |

3-1/2 |
19.0 |

4 |
22.0 |

*For example, a 1⁄2 inch Tee fitting flow thru the Branch has the friction loss equal to 4.0 feet of pipe. Therefore, 10 feet of 1⁄2 inch pipe containing one Tee fitting flow thru the Branch has the same friction loss of 14.0 feet of straight pipe.* |

*The information and calculations provided are based on data which we believe is reliable. Expert4PVC Consulting, however can not take responsibility for the information or data contained herein and no warranty of performance for any specific purpose or particular installation of any product is expressed or implied from this calculator. Results based on the equations shown and parameters entered.*